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Breath of life

Explains how the human body gets the regular supplies of air it needs and rids itself of carbon dioxide. Shows how the exchange of information between the brain and chest muscles enables the body to meet varying demands for oxygen.

a presentation of Films for the Humanities, Inc. ; produced by Goldcrest Films and Television ; producer, writer, Karl Sabbagh.

Abstract:

Explains how the human body gets the regular supplies of air it needs and rids itself of carbon dioxide. Shows how the exchange of information between the brain and chest muscles enables the body to meet varying demands for oxygen.